Monitoring house reinfestation by vectors of Chagas disease:: a comparative trial of detection methods during a four-year follow-up

Monitoring house reinfestation by vectors of Chagas disease:: a comparative trial of detection methods during a four-year follow-up
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DOI:
10.1016/s0001-706x(98)00096-5
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发表时间:
1999-03-15
期刊:
影响因子:
2.7
通讯作者:
Cohen, JE
Cohen, JE
中科院分区:
医学2区
文献类型:
--
作者:
Gürtler, RE;Cecere, MC;Cohen, JE

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1992年至1996年,在阿根廷西北部的阿马马和其他附近农村,在施用溴氰菊酯和明显消除锥蝽后,监测了锥蝽虫的国内再侵染。使用的五种方法是传感器盒,粉红色的打字纸,定时手动捕捉由一个熟练的三人小组的协助下,冲洗剂,收集的房子居民,并击倒使用杀虫剂熏蒸剂罐。在卧室里,房子居民收集T。infestans显着更频繁的冲洗方法,但相反发生在peridomestic网站。这两种方法和传感器盒揭示了频繁入侵的成年锥口线虫和T。infestans,但T. guasayana和Triatoma sordido在卧室区域殖民,尽管它们在附近的居住地越来越多。传感器盒显着更敏感,比匹配的纸张在三个五个横断面调查。平均而言,每个盒子记录的锥蝽粪便涂片是每张纸的2.0 - 3.2倍。感应箱中粪便的频率与T。infestans、T. guasayama或T.在卧室里用任何方法都能捕捉到肮脏的东西。传感器盒中的锥蝽粪便涂片是寄生虫感染的最早和最常见的迹象,其次是居民收集的成虫。前瞻性地分析数据,我们提供了一个定量的,预测性的理解检测方法和审查的有效性和解释的不同迹象的侵扰。在国内地区进行病媒监测的最敏感和最具成本效益的检测方法组合是使用传感器盒和住户收集。(C)1999 Elsevier Science B.V.保留所有权利。
Domestic reinfestations by triatomine bugs were monitored after application of deltamethrin and apparent elimination of Triatoma infestans in Amama and other nearby rural villages, north-west Argentina, from 1992 to 1996. The five methods used were sensor boxes, sheets of pink typing-paper, timed manual catches by a skilled three-person team aided by a flushing-out agent, collections by house-dwellers, and knockdown using insecticide fumigant canisters. In bedrooms, house-dwellers collected T. infestans significantly more frequently than the flushing-out method, but the reverse occurred in peridomestic sites. Both methods and sensor boxes revealed the frequent invasion of adult Triatoma guasayana and T. infestans, but neither T. guasayana nor Triatoma sordido colonized bedroom areas in spite of their rising abundance in nearby peridomestic sites. Sensor boxes were significantly more sensitive than the matched paper-sheets in three of five cross-sectional surveys. On average, each box recorded 2.0-3.2 times more triatomine fecal smears than each paper sheet. The frequency of dejecta in sensor boxes correlated positively with the proportion of houses where T. infestans, T. guasayama or T. sordida were captured by any method in bedroom areas. Triatomine fecal smears in sensor boxes were the earliest and most frequent sign of domiciliary infestation, followed by dwellers' collections of adult bugs. Analyzing the data prospectively, we provide a quantitative, predictive understanding of detection methods and review the validity and interpretation of the different signs of infestation obtained. The most sensitive and cost-effective combination of detection methods for vector surveillance in domestic areas was the use of sensor boxes and house-dwellers collections. (C) 1999 Elsevier Science B.V. All rights reserved.